CVE-2018-5241 Symantec Advanced Secure Gateway (ASG) 6.6 and 6.7, and ProxySG 6.5, 6.6, and 6.7 are susceptible to a SAML authentication bypass vulnerability. The products can be configured with a SAML authenticati...
CriticalCVSS 9.8
EPSS 4.4%
- Published
- Updated
- Exploit status
- No public exploit known
Description
Symantec Advanced Secure Gateway (ASG) 6.6 and 6.7, and ProxySG 6.5, 6.6, and 6.7 are susceptible to a SAML authentication bypass vulnerability. The products can be configured with a SAML authentication realm to authenticate network users in intercepted proxy traffic. When parsing SAML responses, ASG and ProxySG incorrectly handle XML nodes with comments. A remote attacker can modify a valid SAML response without invalidating its cryptographic signature. This may allow the attacker to bypass user authentication security controls in ASG and ProxySG. This vulnerability only affects authentication of network users in intercepted traffic. It does not affect administrator user authentication for the ASG and ProxySG management consoles.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| broadcom advanced secure gateway | = 6.6 | No fix listed |
| broadcom advanced secure gateway | = 6.7 | No fix listed |
| broadcom symantec proxysg | = 6.5 | No fix listed |
| broadcom symantec proxysg | = 6.6 | No fix listed |
| broadcom symantec proxysg | = 6.7 | No fix listed |
| symantec Advanced Secure Gateway (ASG) | = 6.6 | No fix listed |
| symantec Advanced Secure Gateway (ASG) | = 6.7 | No fix listed |
| symantec ProxySG | = 6.5 | No fix listed |
| symantec ProxySG | = 6.6 | No fix listed |
| symantec ProxySG | = 6.7 | No fix listed |
References
- 104282 third-party-advisory vdb-entry
- 1040993 third-party-advisory vdb-entry
- www.symantec.com vendor-advisory